BASIC语言控制下计算机的图象输入和输出
Image Informaton Input-output of Computer Under the Control of Basic Language
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摘要: 本文概述了一个在BASIC语言控制下,DJS-130计算机图象输入和输出实验处理系 统.文中阐述了电视图象信号经A/D变换头和数据通道接口电路进入计算机的硬件结构;简 述了通过程序传送方式向电视图形显示器输出信号的方法,以及控制图象入/出的BASIC语 句的设计.Abstract: This paper describes an experimental processing system using DJS-130 computer with the capability of the image information input/output under the control of BASIC Language. In this article we state the hardware construction of DMA, by which the image information of TV signal source is entered into computer through the medium of A/D converter, and briefly explain the method of the digital information output from the computer into the graphic display, which uses TV scan, with the channel of program transmission. The corresponding software is of BASIC input and output statment to control image information I/O. Also, we expound the design of those statments.
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